Grain-carrier for harvesters.



Patented Oct. 28, I902.

No. 7u,955.

w. FOSTER. GRAIN CARRIER FOR HARVESTEBS.

(Application filed. Mar. 24, 1902.\

(No Model.)

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UNITED STATES PATENT OFFICE.

l/VILLIAM FOSTER, OF LAWTON, OKLAHOMA TERRITORY.

GRAIN-CARRIER FOR HARVESTERS.

SPEGIFIGATION forming part of Letters Patent No. 711,955, dated October28, 1902.

Application filed March 24,1902. Serial No. 99,645. (No model.)

To all whom it may concern.-

Be it known that I,WILLIAM FosrER, a citizen of the United States,residing at Lawton, in the Territory of Oklahoma, have invented acertain new and useful Improvement in Grain-Carriers for Harvesters, ofwhich the following is a specification.

My invention relates to the improvement of grain -carriers forharvesting-machines; and the objects of my invention are to provide, inconjunction with the endless-aproncarrying rolls, means for permittingan adjustment of the upper apron or belt rolls, and thereby prevent thechoking or clogging of grain between the aprons or belts, and to producecertain improvements in details of construction and arrangement ofparts,which will be more fully pointed out hereinafter. These objects Iaccomplish in the manner illustrated in the accompanying drawings, inwhich- Figure 1 is a side elevation of an inclined carrier frame of thatclass which is ordinarily employed on grain -harvesting machines. Fig. 2is a plan view of a portion of one of said carriers having myimprovements,

showing for the sake of clearness a part of the endless apron brokenaway. Fig. 3 is an inner side elevation of the upper end portion of oneof the side frames of the carrier, and Fig. 4 is an enlarged sectionalview on line no wof Fig. 1.

Similar numerals refer to similar parts throughout the several views.

1 represents one of the parallel side frames of an inclinedcarrier-frame, and 2 represents one of the upper rotating rolls on whichare carried the usual upper endless apron or belt 3.

4 represents the end spindles of the lower belt-carrying rolls, theseend spindles being pivoted in the side frame-pieces 1 of thecarrier-frame at points below the upper rolls in the usual manner. Inthe upper side of each of the side frame-pieces 1 and adjoining each endthereof I form a substantially vertical slot or mortise 5. On the innerside of each of the carrier side frame-boards 1 is arrangedlongitudinally an apron or belt guide bar 6, and in an opening in eachend of this guidebar is secured an outwardly-projecting bearing-box 7,the latter extending loosely through and adapted to bear within thecorresponding frame-slot 5. and form bearings for the spindles 2 of theupperrolls 2. The upper side of the outwardly-projecting portion of eachof the boxings 7 is provided with a pin or stud 8, and with these pinsor studs are connected the ends of an upwardly-bowed spring-strip 9.Each of these spring-strips extends on the outer side of the sideframe-piece 1 and is provided in its central portion with anupwardly-projecting flange or lip 10, through which extends a bolt 11.This bolt may be made to enter the desired one of a number of bolt holesor openings 12, formed one above the other in a vertical bar 13, whichis socured to and rises from the corresponding side frame-piece 1. Bythus properly securing the center of each of the spring-strips 9 to thebar or standard 11 it will be seen that the ends of said spring-stripwill exert a desirable downward pressure on each of the upper boxings 7,normally retaining the latter in the lower portions of the slots 5.Heretofore considerable difficulty has been caused by the tendency ofgrain under certain conditions to become choked or clogged between theunder side of the upper endless belt or. apron 3 and the upper side ofthe lower belt or apron, (not herein shown;) but by the means describedit will be seen that in case of a tendency of the grain to pack or chokebetween the aprons and between the rolls thereof the upper rolls will bepressed upward sufficiently to relieve the pressure on the grain andpermit of the usual carrying operation of the aprons.

Having now fully described myinvention, what I claim, and desire tosecure by Letters Patent, is

In a grain-carrier for harvesters, the combination with the carrier,side frame-bars 1 having slots 5 formed in their upper portions, of theupper endless-apron-carrying rolls 2 having hearings in said slots,springs exerting a yielding pressure on the bearing ends of said upperrolls and means for adjusting said springs to vary the pressure thereof,substantially as specified.

WILLIAM FOSTER.

In presence of C. O. SHEPHERD, JOHN FOSTER, Jr.

These boxings 7 receive

